PFA Tubing (perfluoroalkoxy alkanes) is manufactured from a copolymer of hexafluoropropylene and perfluoroethers. It provides a broad operating temperature, is chemically inert (with the exception of fluorine and some alkali metals) and offers superior flexibility and optical clarity compared to other fluoropolymers. PFA tubing is also inherently pure due to having a low-off gas offset and it complies with FDA and USP regulations regarding food contact and material biocompatibility. The tubing is a popular option in applications that are subject to elevated temperatures or with aggressive media in controlled environments such as laboratories.
In comparison to PTFE tubing, perfluoroalkoxy provides enhanced short term pliability, tensile strength and transparency. It also offers a similar dielectric constant and comparable chemical and temperature resistance to polytetrafluoroethylene. PFA is, however, slightly inferior to PTFE in applications that are subject to repeated folding due to having a lower long term flex life.
PFA tubing is available to buy online in a range of standard metric and imperial diameters at PAR Direct by clicking the link above.
Commonly used in food, drink and pharmaceutical applications that require a clear, non-toxic carrier or to convey highly aggressive chemicals and solvents. PFA tubing can also be used as electrical cable sleeving due to its dielectric properties or in compressed air applications.
- Temperature: -260°C up to +260°C.
- High mechanical strength over a broad temperature range.
- Outstanding resistance to chemicals and solvents.
- Very good optical clarity (refractive index 1.34).
- Low off-gassing that leads to high purity.
- Excellent resistance to weathering.
- Outstanding dielectric properties.
- Very low moisture absorption.
- Excellent non-stick properties.
- Food approved.
- Complies with FDA regulation 21 CFR 177.1550 for perfluorocarbon resins that may be safely used in contact with food.
- USP Class VI compliant.
- Offers a UL94 V-0 flammability rating, meaning the polymer will self-extinguish after removal of flame.